Fix dump hbb tests
test-dumper hbb
fails with
(base) [svanstroud@pc215 tdd]$ test-dumper hbb
running in /tmp/tmp.msw4LDhj9F
getting file DAOD_PHYSVAL.small.pool.root
running dump-hbb DAOD_PHYSVAL.small.pool.root -c /unix/atlastracking/svanstroud/gnn-tagger/tdd/training-dataset-dumper/BTagTrainingPreprocessing/test/../../configs/hbb/2020_ftag5dev.json
terminate called after throwing an instance of 'boost::wrapexcept<boost::property_tree::ptree_bad_path>'
what(): No such node (track_variables)
/unix/atlastracking/svanstroud/gnn-tagger/tdd/build/x86_64-centos7-gcc8-opt/bin/test-dumper: line 108: 29117 Aborted (core dumped) ${CMD}
It looks like we at least need to update the test sample here.
We should also add a Hbb test to the CI